Art of removing fiate dttst from containers



May 6 1924. v 1,493,092

' R. w. H. ATCHERSON K ART OF REMovING Fiu pusT FROM CONTAINERS Filedsept. 12'. 1921 ull ` YEwen-a Patented May 6, 1924.

UNITED STATES RALPH W. Il. AT('JIFJERSON,V OF INDIANA HARBOR, INDIANA. l

ABT OF REMOVING FLUE DUST FROM CONTAINERS.

Application `filed September Y12, 1921. Serial No. 500,149.

To all whom t may concern.'

Be it lrnown that I, RALPH WV. H. ATGHER- soN, a citizen of the UnitedStates, residing .s at Indiana Harbor, in the county of Lake 1 ampledust catchers, dust pockets, dust-jre.

ceiving spaces in cleaners of thev filter-pad type, electricalprecipitators and tangential whirlers.

The removal of the dust economically and without danger to the workmenor equip# ment, from structures inwhich. it isl dis-I posed, either` fordischarge as waste, for treatment and return tothe blastfurnaces,

'or for other disposal, has presented a great problem in thepracticaloperation of .blast during the emptying of the dust-catcher, or

fy lbodyportion of the container. The catcher with including the dustcatcher, onother y The purpose lofrmy' invention, generally I stated, isto provide for the handling of fthe,4

lflue-dust in a manner. preferably lnot to in- A terfere with the;continued operation of ythe are permitted to rise inthe washer inopposerve'the furnacev systems.

The common practice has been to loadthe luedust` into cars, but suchhandling ofthe dust has presented many objections certain of which arethe danger of ,injury to the workmen `and equipment, notonly fromescaping gas, but also from the dust, especia-lly when the dust is hot,the great attendfA .ant expense, whiclrincludes the costofy cars forsuchuse, the cost of operating the same,

comprising the cost of motive lpower for the cars and the laborfor'operatingthem which latter is augmented when the cars are..overloaded with the dust and replacementy in the cars of the dustspilled therefrom, is

required, the irregularity vof the operation of the, .blast furnacegas-cleaning system other dust container, and the impairment o theefficiency of thedust-catchers, or other dust containers, due to thecontainers becoming partially lilled with dust andbecoming furnacefandthe apparatus associatedpthere-y containerin which. the dust iscauseldtobecome disposed, and ina manner to avoidfin- `jury` Vto the workmenand equipment, congas generated by theblastfurnace,

and to minimize the expense of such disposal, both from the standpointof originall cost of the apparatus and its upkeep, and the labor costfor operation; and generally to improve upon prior .practices ofyflue-dust disposal` or transfer.

Referring to the accompanying drawing: I

'Figure 1 is aviewin elevation 'of an installation embodying myinvention andk 41nvOlVing, as ay part of a blastfurnaoe equipvment,;adust-catcher and a gas-washer,

and means for transferring, or conveying, .the flue-dust .precipitatedin the dust-catcher, all

vin `accordance with my invention; and 'Figure 2, a similar view, withcertainportions of the apparatus shown 1n Fig. 1 broken away, showinganother arrangement of the parts illustrated in Fig. 1 and embodying myinvention. t. v n

I have chosen to illustrate my invention 1n ,connection with apparatusdesigned to receive the flue-dust directly from a blast furi nace andeifect its separation from the products of combustion with which it ismixed,

,butv it will be understood that the invention lis Anot limitedtoemployment in such an apparatus.I .l

I Infthe particulary arrangement shown in Fig. 1, S'represents a conduitwhich leads `:fromothe `outlet of a blast-furnace (not 'shown). thisvconduit or down-comer opening .at'itslower en d into. a dust-catcher'represented at 4 which-may be of any desirable construction, such, forexample, as is commonly inuse ,and whereinthe .dust entering it withtheproducts of combustion from the blast furnace, `is caused tobecomeprecipitated into the lower hopper-shaped end of the catcher 4,the hopper-formed portion of the catcher in thel particular constructionshown constituting vthe bottom .wall of the is shown as provided at itstop withy a conduit 6 which opens at one end into. the

catcher and -at its'opposite end into a gaswasher 7, as shown into thebottom of the latter, which may be of any desirable construction such,-as for example, as lis, no w commonly'fin use wherein the productsI ofcombustion discharging from `the catcher 4:

[finer suspended solid 4matter carried over v the .dust`int`oareceptacle, f

with the gases into the washer, are' thrown down with the. water anddischarged with the latter through an outlet pi-pe 8, the washer beingprovided with a gas outlet pipe 9 through whichV the gases are conveyedto any desired point in accordance with common practice.

The lower end of the catcher 4 is shown as formed with a spout portion10 into which t'he upper end of a pipe 11shown as inclining downwardly,and preferably valved at 12, opens, the lower end of this pipe openinginto a substantially verticalpipe 1 3, the lower open end of which isprovided with a valve 14, the pipe 13 openingabove' the Vvalve 14 andbelow the pointof connectionA .ofthe pipe 1 1 with the 4pipe- 13, into apipe 15 preferably lformed with an upwardlyeezitejnrding ybend 16', Itheouter end ofthe l1 5 being llocated directly above af sfluiciiig4gutter, flume, ,or sewer 1'?. The 13 Cates with one end of?J pipeA abovethe' point at which the pipe` Qp intoi.it, the other end .of p ipe 1 8opeilingU to the pipe .8 through a coupling 19, thelower branch 20 ofwhich is valved, its branch 21 opening into a pipe 22 formed 'with fanupwardly-,eztending bend 2 3 extending at a higher elevation v than thehighestpoint at whichthe piping leading from the lother side-branch v24ofthe couplinglQ, extends, the extremity of the .pipe being open andextending above the gutter 17 .wliereby, Should the piping leading Wayfrom the 'sfide branch 24 become clogged, the r washing water may`escapel from the washer throughl the pipe 22 l In the operation of theapparatus the flue-dust precipitatedinhe catch inf-T4 ,descende indrycondition the 11 and 4into the vpipe 13 wherein it is contacted' bythe wash water flowing 'from the 7 through the pipes 8, `18 and 1 3..The water lowing through the pipe 13 commingles L with the 'dust7suppliedv to theipipe P13 as stated, and the y intermixed water-and.dust discharges rom thepipef13 yinto the pipeV l5 and thenceintothe trough ,17 throughwhich latter it flows yto any desired for'settling of 4the dust from`- waterv subsei quent use or treatment, orthe disposal thereof otherwise. i

The .meer i is shawn jaspfeviridwim .an @nuance at, asigwefpndpmieeiiedi by a vailvve26which permitsof th d''SG'l `-1 l", Ll.. y of clow, the point at which the .p1 opens into pipe 13, the dustdescending in sf'Said"efe-enfermerapipe section.'

ie" 18m the pipe 11 dropping into the water discharging from the pipe 18into pipe 13.

In both arrangements shown it is preferred that the piping referred tobe so proportioned and disposed that the flow of.

shown for the ready removalo' any dust may becornedampened suliicientlyto clog the pipe 1 1, the' provision of an opening`-inthe side of the`rspout-portion 10,

In the normal operation of the said opening-being normallyA closed by avplu'g,`through which asuitable rod may be introduced into pipe 1,1, toforce wendustaccumulations therefrom and into pipe 13. Under 4certain,conditions it is desirable, ,for -purpose of economy, to employ as the'sluicing water for k'the dust, the vwaterdischarged from the gaswashenbut vit will be understood that any other source of desirablefluid may be' utilized regardless of its having been previously usedforfa-'nother purpose., It'kwillals'o beun'de'rst'ood that my" i n ipro`\'fedr method and apparatus may bek utilized in connection wit-li'othe`r arrangements than those y.nivolvmg a so-called dust catcher.These, as well as various othermoditications, both as to the mannero'fgpractici'ng my improved method and as to the apparatus shown, may beemployed without departing from the spirit o'f-my invention What Icl'aiinas new, and'desire to secure by Letters Patentfis';

1.` Apparatus for the purposefse't forth, comprising, in combination, aclust-container,

a source of'liqu'id, and piping connected the discharge end of saidcontainer: and with said source 'of liquid comprising a pipe sectionextending at anangleto thehorizoncontaining Aan openingv in its sidewall, and other lpipe sectionsl'eading from said iiq'id Supply andnemend'dealings end, resp e cti vely,one of said last-referred-to pipev'sections opening into the upper'end ofk eine sweetened-tejpilpe'secfion endg-the lother .thereof `(5011111111iii'eatingi Twithgand at, said opening in the side wall ing a. pipe section extending atan angle to the horizontal and in communication with the discharge endof said container-,gland a Water-seal-forming pipe having an upwardlyextending portion and leading from said outlet of said Washer to saidfrsterefe'rred-to pipe section for the purpose set forth.

3. Apparatus Jfor the purpose setliforth, comprising, in combination, adust-container, a gas Washer, pipingfA connected With the discharge endof said container and with the liquid-outlet of said Washer andcomprising a pipesection extending at an angle to the horizontal and incommunication With the discharge end of said container, and a pipeleading from said outlet fof said Washer in an upward direction andcommunicating with said rst-reerred-to pipe section for the purpose setforth, and another pipe communicating with theliquidoutlet of saidWasher and extending to a higher ele- 20 Vation than saidsecond-referred-to plpe.

RALPH W. H. ATCHERSON.

